It is important to watch these areas to monitor any changes in shape, size or colour.

Using a simple ABCDE checklist you can look for signs of irregularity*:

  • Asymmetry - If you drew a line through the middle of a mole would both halves match?
  • Border - Does the mole have a distinct border (melanomas have uneven borders).
  • Colour - Is the mole one colour? 
  • Diameter - Is the mole wider than 6mm across?
  • Evolving - Is the mole changing in size, shape or colour?

You should seek immediate medical attention if you notice any changes to existing lesions or abnormal looking new lesions.*Source: MacMillan Cancer Support